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66 MHz Intel Pentium (sSpec=SX837) with the FDIV bug The Pentium FDIV bug is a hardware bug affecting the floating-point unit (FPU) of the early Intel Pentium processors . Because of the bug, the processor would return incorrect binary floating point results when dividing certain pairs of high-precision numbers.
Poor CPU cooling due to a CPU heatsink and case fans (or filters) that's clogged with dust or has come loose. Overclocking beyond the highest clock rate at which the CPU is still reliable. Failing motherboard. Failing processor. Failing memory. Failing I/O controllers, on either the motherboard or separate cards. Failing I/O devices.
Final determination and validation of whether an update can be applied to a processor is performed during decryption via the processor. [18] Each microcode update is specific to a particular CPU revision, and is designed to be rejected by CPUs with a different stepping level. Microcode updates are encrypted to prevent tampering and to enable ...
Intel Pentium processor. The Pentium F00F bug is a design flaw in the majority of Intel Pentium, Pentium MMX, and Pentium OverDrive processors (all in the P5 microarchitecture). Discovered in 1997, it can result in the processor ceasing to function until the computer is physically rebooted. The bug has been circumvented through operating system ...
Meltdown exploits a race condition, inherent in the design of many modern CPUs.This occurs between memory access and privilege checking during instruction processing. . Additionally, combined with a cache side-channel attack, this vulnerability allows a process to bypass the normal privilege checks that isolate the exploit process from accessing data belonging to the operating system and other ...
In 2000, a Zenit 3SL launch failed due to faulty ground software not closing a valve in the rocket's second stage pneumatic system. [35] The European Space Agency's CryoSat-1 satellite was lost in a launch failure in 2005 due to a missing shutdown command in the flight control system of its Rokot carrier rocket. [36]
None of these five registers were implemented in the subsequent Pentium processor; the special variant of MOV generated an invalid opcode exception. [ 3 ] [ 4 ] With the introduction of the Pentium processor, Intel provided a pair of instructions ( RDMSR and WRMSR ) to access current and future "model-specific registers", as well as the CPUID ...
Intel Inspector (previously known as Intel Thread Checker) is a memory and thread checking and debugging tool to increase the reliability, security, and accuracy of C/C++ and Fortran applications. Reliability: Find deadlocks and memory errors that cause lockups & crashes; Security: Find memory and threading vulnerabilities used by hackers